Hub-liner for railroad-wheels.



No. 654,64l. Patented luly 3|, I900. F. T. HYNDMAN.

HUB LINER FOB RAILROAD WHEELS.

A ucacimi filed m 20, 1900.

{No Model.)

appliance for reducing IO UNITED STATES PATENT ()EEicE.

HUB-LIN ER FOR RAILROAD-WHEELS.

SPECIFICATION formingpart of Letters Patent No.

654,641, dated July 31, 1900.

Application filed May 26, 1900. Serial No. 18,043. (No model-J T0 atwhom/it may concern:

Be it known that I, FRANK T. HYNDMAN, of Allegheny, in thecounty ofAllegheny and State of Pennsylvania, have invented a certain new anduseful Improvement in Hub- Liners for Railroad-Wheels, of whichimprovement the following is a specification.

The object of my invention is to provide an friction and preventlngundue wear of the adjacent bearing-surfaces of railroad-wheels and theboxes in which their axles rotate which shall be of simple andinexpensive construction and readily insertible and removable as mayfrom time to time be required without involving the necessity ofdropping the Wheel or disturbing the box.

The improvement fully set forth.

claimed is hereinafter In the accompanying drawings, Figure 1 is a viewin elevation of the inner side of a locomotive driving-wheel,illustrating an application of my invent-ion; Fig. 2, a diametricalsection through the same; Fig. 3, a partial similar section on anenlarged scale; Fig. 4, a view in elevation of a hub-liner detached asseen from the inner side, and Fig. 5 an edge View of the same or onetaken atright angles to Fig. 4;. V

In the practice of my invention I provide a hub-liner, of brass or othersuitable wearing composition or metal softer than steel, which .issubstantially in the form of a comparatively-thin annular plate and iscomposed of two separable sections-to wit, a mainbody l and a dovetailedor tapered filling-pieced, adapted to fit in a radial opening of corresponding form. in the body. A semicircular recess 2 is formed in thebody and a similar recess 5 in the adjacent edge of thefillingpiece,these recesses forming when the filling-j piece is fitted into itsseatin the opening of the body a circular opening through which the axle 7passes. Lugs 3 and 6 are formed upon the outer portions of the body andfilling-piece, respectively, said lugs being provided with tapered orconical openings for the reception of the countersunk heads ofconnecting-bolts 8, which pass through lugs 9 on the inner face of thehub 11 of the Wheel and are secured thereto by nuts 10.

It will be obvious to those skilled in the art that while-herein setforth as connected to a mechanical equivalent of that wheel-hub theliner may without difference of. operative principle or resultbe-similarly attached to the adjacentuface of the box in which the axleof the wheel rotates, and such latter construction I therefore specifyas the shown in the drawings.

In the application of the liner the recess 2 of the body is slipped overthe axle 7, and the filling-piece is fitted in its seat in the body, itsrecess 5 inclosing the semicircumference of the axle. The body andfilling-pieces are then firmly secured to the wheel-hub by theconnecting-bolts 8 and their nuts 10.

It will be seen that as the nuts 10 are at all times accessible theappliance may be readily attached and removed whenever desired when sofar worn that its replacement by a new one may become necessary ordesirable and also that its attachment and removal may be effectedwithout necessitating the removal of the wheel or interference with theaxle-box. Displacement of the filling-piece is also ef fectuallyprevented by its engagement with the sides of the openingin the body inwhich it is fitted.

I claim as my invention and desire to secure by Letters Patent 1. Ahub-liner for railroad-Wheels, composed of a semicircularly-recessedbody-plate, and a correspondiugly-recessed filling-piece fitting in aradial opening in the body-plate.

2. A hub-liner for railroad-Wheels, composed of asemicircularly-recessed body-plate, and a correspondingly-recessedfilling-piece fitting in a radial opening in the body-plate, thebody-plate and filling-piece being provided with peripheral lugs havingconical openings for the reception of connectingbolts.

3. The combination of a wheel-hub having peripheral bolt-lugs, asectional hub-liner fitting'around the axle of the Wheel, and composedof a body-plate and a filling-piece fitting in a radial opening therein,connectingbolts having countersunk heads fitting in the sections of thehub-liner and passing through the lugs of the wheel-hub, and nutssecuring said bolts to the Wheel-hub. FRANK .T. HYNDMAN. Witnesses:

O. A. WILLIAMS, JAMES C. HERRON.

